Dairy workshop presentation john house
-
Upload
dr-khalid-shouq -
Category
Food
-
view
161 -
download
1
Transcript of Dairy workshop presentation john house
Herd Health
John HouseSydney University
The Australian Dairy Industry
Efficiency of Production is Key to Long Term Sustainability
PlanningDefining objectivesMonitoring outcomesIdentifying bottlenecksImplementing changesAssessing responses
Applied Sciences in Dairy Farming
Crop ScienceAgronomyCropping
Animal ScienceNutritionHealthReproduction
Environmental ScienceWaterEffluent
Determinants of Cow Performance
NutritionFeeding the right ration at the right time
ComfortMinimizing environmental stressKeeping cows clean and dry
ReproductionPosition the cow to achieve her potential
The Life Cycle
Heifer ReplacementsSex distribution of calvesPerinatal mortalityPre-weaning mortalityGrowthReproductive performance
Perinatal mortality
Pre Weaning Mortality
Growth
Heifer Reproductive Performance
Survival Plot (PL estimates)
0 3 6 90.00
0.25
0.50
0.75
1.00Survivor
Times
Survival Plot (PL estimates)
0 100 200 300 4000.00
0.25
0.50
0.75
1.00Survivor
Times
Adult Cow Monitoring
NutritionReproductionHealthProduction
Nutrition
ForagesGrown on farm
Concentrates Contracts with growers
CommoditiesFeed merchants
Nutrition
Ration formulationProfessional nutritionistLeast cost rationsCows grouped according to productionRations formulated to meet cow requirements
Nutrition
Milk ProductionComponents
Manure Cow healthBUNNEFA
Nutrition
Reproduction
Focus on transition cow managementUtilize computerized recordsUtilize technology Proactive interventionsMonitor outcomes
Reproduction
Reproduction
Cow Comfort
Optimise production Promote dry matter intakePromote restingMinimise microbial challenge to the teat endFacilitate expression of oestrous
Minimize diseaseMastitisLameness
Health Outcomes
Health
Health
Coliform growth with additives in CM
02
46
810
1214
1618
20
0 12 24 48 72 120 168
Time (Hours)
LN(c
fu/m
L)
CM 2.5% Lime 5% Lime 10% Lime Stalosan Mistral
Milk culture results
100.0676Total
17.5118No growth
5.235Minor pathogens
7.7522 isolates
13.289Staphylococcus sp.
24.6166Coliform
32.0216Streptococcus sp.
PercentageNumber of samplesBacterial Isolate
Production
Production
SummaryDeterminants of Production
Cow ComfortNutritionReproduction
High production is achieved when systems are designed and managed to meet the needs of the cow.
Implement existing knowledge and technologyPlanSet goalsMonitor outcomesAdjust management according to outcomes